Abstract: Prenatal assessment of fetal development is primarily carried out by measuring fetal heart rate (HR) and HR variability (HRV). HRV has been used as an index for the autonomic nervous system ...
Poplar_Crochet on MSNOpinion
Very quick and easy crochet heart keychain
This very quick and easy crochet heart keychain is perfect for beginners and makes a cute handmade accessory or thoughtful ...
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